The
Report
contains the following elements:
The first
box plot
shows all subjects for which Mahalanobis Distance is calculated. Values closer to
zero
(0) reflect subjects that are close to the multivariate mean of the
variables
(inliers). Larger values represent subjects that are extreme in multivariate space. The
square
of Mahalanobis Distance is distributed as
chi-square
with
k
degrees of freedom, where
k
is the number of variables used in the calculation of Mahalanobis Distance. The redline reflects the
square root
of
k
. The second figure shows box plots by study site. This allows the analyst to determine how different sites are from the multivariate mean.